133results about How to "Simple craft" patented technology

The invention relates to the technical field of hydraulic fracturing capacity increasing revamping of oil and gas reservoirs, in particular to a method suitable for effective flow guide for fractures in fracturing of a shale oil pool reservoir. The method includes the following steps that A, the reservoir is pretreated through acid liquor; B, the main fracture is constructed through low-viscosity fracturing fluid; C, the micro fractures and the branch fractures are opened by injecting low-viscosity slickwater; D, slugging is conducted by injecting low-viscosity acid liquor and low-viscosity slickwater alternately; E, low-viscosity slickwater carrying a proppant and low-viscosity fracturing fluid carrying a proppant are injected in sequence so as to support a micro fracture system and a branch fracture system, and the first proppant is different from the second proppant; F, intermediate-viscosity fracturing fluid carrying proppants is injected so as to support a main fracture system; and G, the fourth proppant in a shaft is completely displaced to the openings of the fractures by means of the low-viscosity slickwater.

The invention relates to a synthesis method of taurine, belonging to the technical field of organic chemical synthesis. The synthesis method comprises the following steps of: reacting the oxirane with ammonium sulfite to obtain taurine ammonium salt, and acidating and refining to obtain the taurine. The reaction steps of the technical scheme are less, the taurine ammonium salt can be obtained just by one-step reaction between the oxirane and the ammonium sulfite, the crude taurine can be obtained by acidating, and the taurine is obtained by refining, therefore, the synthesis method has simple process and can embody the economical efficiency and the cleaning production.

The present invention belongs to the field of environment protecting technology, and is especially one kind of integrated sewage treating process in flocculant biological flow bed. The present invention integrates the first stage reinforcing technology and biological flow bed technology, and has flocculating biological denitrogenating reaction pond with thrown suspended stuffing for denitrifying bacteria to coagulate and grow on, and aerobic biological flow bed with outgoing water to flow back over the intermediate precipitation pond, to realize the chemical flocculation and denitrifying biological denitrogenating in the same reactor. The present invention realizes the organic combination of two said technologies, and has reduced building number, simple and compact technological process, and high sewage treating efficiency.

The invention discloses a fully mechanized mining gob-side entry retaining-based concrete block staggered joint longitudinal stacking wall forming method, which comprises the following steps of: manufacturing concrete building blocks comprising at least two types of building blocks of different weights and sizes; feeding the concrete building blocks to a building entry on a working surface and building a wall main body, wherein the wall main body is formed by longitudinally stacking odd-layer building blocks and even-layer building blocks, paving seams between adjacent odd-layer concrete building blocks and paving seams between even-layer adjacent concrete building blocks are formed in a staggered way, large-weight concrete building blocks are used for building below a position, which is 1.2 meters above the ground, of the wall main body and light-weight building blocks are used for building above the position which is 1.2 meters above the ground; and plugging support bags in which pulverized fuel ash is filled into the space between the wall main body and a top plate. By the method, entry cost after mining can be lowered, and the operation efficiency of a coal pillar-free mining mode is improved.

The invention provides a layered refracturing method. The method includes the following steps that the reservoir characteristic parameter and the initial crack characteristic parameter are obtained; and a layered refracturing mode, the fracturing fluid and layered refracturing construction parameter are selected; if necessary, initial cracks are repaired; refracturing is conducted to obtain new cracks; balancing and replacement are conducted. According to the method, a suitable layered refracturing mode is selected, the initial cracks and a propping agent are made full use of, the process parameters of refracturing are optimized so as to achieve optimum matching with a reservoir and form the new cracks, on this basis, the fracturing extent of each layer is improved, the height and extending of the new cracks are controlled, the crack propping profile is rationally optimized and controlled, the complexity degree of the new cracks is improved, and the volume is effectively transformed.

The invention discloses a method for preparing cyclic sulphate. The method comprises the following steps: in turn, adding cyclic sulphite, a polar solvent and a catalyst into a reaction container, dipping an oxidant water solution to perform catalytic oxidation reaction under a reaction temperature, adjusting the pH value of the reaction system by alkali in the catalytic oxidation reaction process, standing after finishing reaction, separating the water layer, removing the solvent by distilling an organic layer to obtain the cyclic sulphite crude product, and re-crystallizing or performing vacuum refinery distillation on the crude product to obtain the cyclic sulphate. The method has the advantages of mild catalytic oxidation reaction, easy control, easily available raw materials and cheap raw materials, simple process, convenient operation, high purity and yield of the obtained cyclic sulphate, good stability and easy transportation and storage.

The invention provides a two-component casting glue for capsulation of a solar photovoltaic module, which belongs to the field of high polymer sealing materials. The two-component casting glue comprises component A and component B; component A comprises the following raw materials of 100 to 120 parts by weight of alpha-omega-dihydroxy polydimethylsiloxane, 30 to 50 parts by weight of silicone oil, 80 to 100 parts by weight of a heat conducting filling material, 50 to 60 parts by weight of a flame retardant filling material and 30 to 50 parts by weight of nanometer calcium carbonate; and component B comprises the following raw materials of 100 to 120 parts by weight of silicone oil, 20 to 40 parts by weight of a cross-linking agent, 2 to 3 parts by weight of a coupling agent, 0.5 to 1 part by weight of a catalyst and 1 to 1.5 parts by weight of colored slurry. The two-component casting glue has the advantages of effectively promoted flame resistance, a substantially improved heat conducting effect, capacity of timely and effectively conducting out heat emitted by a bypass diode, excellent performance in inhibiting permeability of water vapor, excellent electrical properties and ideal weatherability and corrosion resistance. A recommended preparation method for the two-component casting glue is simple and terse and does not have strict requirements on a process and equipment.

The invention discloses a ceramized polyolefin material and a preparation method thereof, belonging to the field of electric wire and cable materials. The ceramized polyolefin material comprises the following raw material components: 100 parts of an ethylene-alpha-olefin copolymer, 150-300 parts of ceramized powder A, 20-100 parts of ceramized powder B, 5-40 parts of a lubricating agent and 0.1-1 part of an antioxidant, wherein the ethylene-alpha-olefin copolymer is one or more selected from an ethylene and alpha-propylene copolymer, an ethylene and alpha-butylene copolymer, an ethylene and alpha-hexylene copolymer and an ethylene and alpha-octene copolymer; the ceramized powder A is one or a combination of more than one selected from layered inorganic powder, fibrous inorganic powder and needle-like inorganic powder; the ceramized powder B is at least one selected from borax, ammonium borate, a zinc borate and boron frit, phosphate glass powder with a low melting point, borate glass powder with a low melting point and silicate glass powder with a low melting point; and the antioxidant is at least one selected from 1010, 1076, 168, 626, 300 and DSTDP. The ceramized polyolefin material is reasonable in raw material and proportion, capable of ensuring normal operation of a route, good in flexibility, simple in process and low in cost.

The invention provides a foliar blocking and controlling agent capable of reducing cadmium contamination of brown rice, and a preparation method and application thereof, belonging to the technical field of foliar sprinkling fertilizer for crops. The preparation method comprises the following steps: adding, on the basis of each liter of water, 200 to 230 g of silicon dioxide, 60 to 80 g of potassium oxide, 8 to 15 g of calcium oxide, 1 to 2 g of selenium, less than 2 g of adding elements and 1 to 2 g of a plant growth regulator into a container equipped with a stirring device; carrying out uniform mixing under stirring; controlling stirring time and speed; and the discharging the obtained mixture and carrying out so as to obtain the foliar blocking and controlling agent capable of reducing cadmium contamination of brown rice. The application of the foliar blocking and controlling agent comprises a first step of diluting the foliar blocking and controlling agent with water and a second step of sprinkling the diluted agent on the leaves of rice in stages. The foliar blocking and controlling agent inhibits migration of cadmium ions, guarantees ideal cadmium reduction effect on brown rice, realizes the dual effects of cadmium blocking and nutrient absorption of plants, enables the yield of paddy rice per mu to increase by 6% or above, is beneficial for prolongation of the life span of human beings and increases the added value of rice; the preparation method is simple and has no strict requirements on essential factors; and the application method is convenient and efficient.

The invention relates to a silicone sealant used for electronic products. The invention belongs to the technical field of high-molecular materials. The sealant comprises a component A and a component B. The component A is composed of raw materials of, by weight: 100-110 parts of alpha-omega-dihydroxyl polydimethylsiloxane, 25-40 parts of silicone oil, 5-8 parts of a heat-conductive filling material, 35-65 parts of a fire-retarding filling material, and 20-35 parts of nano-grade calcium carbonate. The component B is composed of raw materials of, by weight: 90-110 parts of silicone oil, 12-15 parts of a cross-linking agent, 3-4 parts of a coupling agent, 1-1.5 parts of a catalyst, and 1.5-3 parts of a colored slurry. The silicone sealant is advantaged in excellent fire retardance, improved heat conductivity, ideal steam-penetration inhibiting capacity, excellent electrical property, excellent weathering resistance, and ideal corrosion resistance. A provided preparation method is advantaged in simple technology, and non-harsh requirements on technologies and equipments. With a provided application method, a mixing effect of the components A and B can be ensured.

The invention which relates to a pouring sealant for electronic components of an automobile control system and a preparation method thereof belongs to the technical field of high molecular materials. The pouring sealant comprises a component A and a component B, wherein the component A comprises, by weight, 90-120 parts of alpha-omega-dihydroxypolydimethylsiloxane, 20-35 parts of silicone oil, 4-6 parts of a heat conduction filler, 45-75 parts of a flame retardation filler and 30-35 parts of heavy calcium carbonate; and the component B comprises, by weight, 80-90 parts of the silicone oil, 17-20 parts of a crosslinking agent, 5-6 parts of a coupling agent, 1.5-3 parts of a catalyst and 2-3 parts of a colored slurry. The pouring sealant has the advantages: above formula is reasonable, so the flame retardation of the pouring sealant can be effective increased, the heat conduction effect can be greatly improved, and heat radiated by the components in an integrated circuit board is timelyand effectively conducted to the outside; the electrical property is excellent; the adhesion is good; and the corrosion resistance is ideal. A recommended preparation method of the pouring sealant has the advantages of concise process, and low requirements on the process and equipment.

The invention provides a comprehensive recycling method for metals in superalloy scrap. The method comprises the following steps of: melting and atomizing nickel-based superalloy scrap into metal powder in certain particle size distribution by adopting a melting and atomizing process, constructing a metal powder bed layer by placing the metal powder in a fixed fluidized bed, placing the fixed fluidized bed in a tubular furnace, controlling the tubular furnace to be at a certain temperature, and enabling reactant gas with a certain pressure to pass through the metal powder bed layer from bottom to top, so that the reactant gas and nickel-based superalloy powder react at a certain reaction temperature to generate metallic oxides and metal chlorides; and separating different metals by utilizing that saturated vapor pressures of different metallic chlorides are different, then respectively treating the metals in a known manner, and recycling rare and precious metals, especially the metals such as rhenium, molybdenum and ruthenium. By adopting the comprehensive recycling method provided by the invention, the aim of comprehensively recycling valuable metals can be achieved, and the recycling efficiency of rare metals can be greatly improved; and the process is concise, the cost is low, and no pollution is produced.

The invention relates to a synthesis method of 5-amido-6-oxhydryl-2-(4-carboxyl benzyl group) benzoxazole (ABA), which takes 5-nitryl-6-oxhydryl-2-(4-methoxycarbonyl phenyl) benzoxazole (NHAB) as raw material that is put into hydrosolvent for hydrolysis by alkaline substance at 60-100 DEG C and then one-spot method is directly used for preparing the ABA through in situ synthesis with the effect of reducer, wherein, the alkaline substance is carbonate of alkali metals. Mass ratio of feeding of the NHAB to the alkali substance is 1:0.8 to 2.25, and the reducer is sodium hydrosulfite (Na2S2O4) or hydrogen. When the Na2S2O4 is used as the reducer, the dosage is 2.0-3.0 time of the mass of the NHAB. The invention has concise technique, high yield and low requirement for equipment. The solvent used in the invention is water, which avoids induction of organ solvent, thereby reducing production cost without polluting the environment. The prepared ABA has high purity and better polycondensation effect, thereby showing good industrial prospect.

A method for extracting anthocyanin from a huckleberry includes the following steps of (1) breaking which includes conducting cleaning and breaking on fresh huckleberries, (2) enzymolysis which includes adding deionized water into the broken huckleberries and adding biological enzyme to conduct enzymolysis under the temperature of 40-50 DEG C, (3) extracting which includes conducting extraction on the huckleberries subjected to enzymolysis through ethanol water for 2-3 times and conducting filtering to obtain an extracting solution, (4) vacuum concentration which includes concentrating the extracting liquid under vacuum to 1 / 3-1 / 2 of the original weight and conducting centrifuging to obtain centrifugate, (5) flocculation clarification which includes adding acid liquid into the centrifugate, adjusting the pH value, then adding a flocculation clarification agent, stirring, standing and filtering to obtain clarified liquor, (6) membrane separation purification which includes utilizing an ultrafiltration membrane to conduct ultrafiltration on the clarified liquor and then conducting reverse osmosis and (7) conducting spraying and drying. By means of the method, the product yield can reach 0.80-0.85%, the anthocyanin content reaches 52-55%, the anthocyanin yield reaches 43-48%, energy consumption is reduced, the period is shortened, the cost is reduced, and the method is applicable to industrial production.

The invention discloses a black tomato juice drink and a preparation method thereof, relating to a novel beverage based on the concept of low-carbon, green, nutrition and health care in the technical field of beverage and its preparation method. The invention is characterized by a special formula. A natural low sugar fashion fruit juice without preservatives and chemical pigments is prepared by carrying out an organic integration and deep processing of non-transgenic rare black tomato and black raspberry, with rich fragrance, sweet and sour. The invention is also characterized by simple technology. The deep processing process is scientific and pragmatic, allows the black tomato juice drink to be convenient for preservation and transportation, and prolongs the eco-industrial chain. The anthocyanidin, lycopene, folic acid, nicotinic acid, vitamin E, vitamin C, selenium and other nutrition components, peculiar to the black tomato and black raspberry, and crude fibers, organic acid and the like, are kept in the greatest degree. Compared with other juice drinks, the black tomato juice has incomparable advantages of enhancing human anti-oxidation and immunity, resisting aging, helping beauty treatment, resisting three-high disease and preventing cancers through long-term drinking.

A process for preparing the efficient bacterial herbicide includes sampling the soil near the root of weeds such as crabgrass herb, caper euphorbia, cassia, etc. or their stem or leaves, separating with NPC culture medium, and the chlorella pyrenoidosa and glutamine synthetase depressants, and screening the bacterial strains with high herbiciding activity and broad spectrum. Its advantage is highherbiciding effect.

The invention provides an application of alicyclic amine, such as octadecylamine, cetylamine, tetradecy lamine and dodecylamine, in thermal equipment operation cleaning as a cleaning agent. The invention further provides an application of a mixture of any two or three or four components selected from octadecylamine or cetylamine or tetradecy lamine or dodecylamine at random mass ratio in thermal equipment operation cleaning as a cleaning agent. According to the invention, insoluble peeling descaling replaces soluble descaling, thus not dissolving and corroding metal, eradicating the harm of traditional cleaning technologies to equipment and accomplishing the production mode of cleaning thermal equipment during operation, protecting during cleaning and efficiently operating during protection. Powder units are always in cleaning state, therefore making powder units to operate safely and stably and reaching the purpose of energy saving and emission reduction. The cleaning agent provided by the invention is a grate breakthrough in traditional cleaning technologies. In addition, the medicine addition condition of using octadecylamine as a thermal equipment outage anticorrosion protective agent is changed, the film forming quality and anticorrosion effect are guaranteed, and the function of outage anticorrosion is reinforced.

The invention discloses a method for electrodepositing a lithium-copper alloy in an ionic liquid system, which relates to a method for electrodepositing the lithium-copper alloy. The method solves the problems that the conventional smelting method for preparing the lithium-copper alloy cannot control the lithium element content easily and has high energy consumption. The method comprises the following: step one, adding LiBF4, Cu(BF4)2 and an additive into BMIMBF4 in turn to prepare an electrolyte; and step two, immerging an anode material and a cathode material into the electrolyte, and adopting a constant current mode and controlling the current density and the electrodepositing time to realize the preparation of the lithium-copper alloy, wherein the two steps are performed in a glove box. The method has the advantages of concise process, simple equipment and low energy consumption; the metal lithium content in the lithium-copper alloy is adjusted and controlled by adjusting components and electrodepositing technological parameters of the electrolyte; the metal lithium content is controllable; and the atomic mass percent content is 7 to 40 percent. Simultaneously, the method realizes co-deposition of lithium and copper which have large electrode potential differences; and the obtained lithium-copper alloy can be used as a cathode material for a lithium ion battery.

The invention discloses a ceramic polyolefin cable material and a preparation method thereof, and belongs to the technical field of a wire / cable material. The ceramic polyolefin cable material consists of the following raw material components in parts by weight: 100 parts of an ethylene-alpha-olefine copolymer, 150-300 parts of ceramic powder A, 20-100 parts of ceramic powder B, 5-20 parts of a lubricant and 0.1-1 part of an antioxidant, wherein the ethylene-alpha-olefine copolymer is a mixture of ethylene and any one or more of alpha-propylene, alpha-butylene, alpha-hexylene and alpha-octylene copolymers according to any proportions by weight; the ceramic powder A is any one or any combinations of lamellar inorganic powder, fibrous inorganic powder and acicular inorganic powder; the ceramic powder B is at least one of borax, ammonium borate, zinc borate, boron frit, low-melting-point phosphate glass powder, low-melting-point borate glass powder and low-melting-point silicate glass powder; and the antioxidant is at least one of 1010, 1076, 168, 626, 300 and DSTDP.

The invention provides a thermal insulation composite and a preparation method thereof. The preparation method comprises the following steps of preparing the following components by mass percent: 60-75% of floating bead, 5-12% of additive, 5-10% of alumina silicate fiber, 10-17% of water glass and 0.7-1.2% of curing agent, stirring the floating bead, the additive and the alumina silicate fiber uniformly, adding the curing agent, stirring for 20-40s, adding the water glass, stirring uniformly to obtain a mixed material, pouring the mixed material into a forming mold for extrusion and compactness, standing for 30-60min in the mold, taking out, evenly placing in a dried and ventilated place, and obtaining the thermal insulation composite. The thermal insulation composite has novelty, creativity and practicability that the thermal insulation composite is reasonable in formula, concise in process, convenient to form, and easy to operate. The thermal insulation composite is high in compressive strength and tensile strength, and can be recycled for many times while excellent thermal insulation and fire resistance are ensured. The thermal insulation composite is nontoxic and pollution-free, and properties of the thermal insulation composite are unaffected after long-term storage.

The invention discloses novel energy dissipation bolt joints for a low-rise fabricated wallboard structure. The novel energy dissipation bolt joints for the low-rise fabricated wallboard structure comprise prefabricated wallboards, prefabricated floor slabs and prefabricated corner columns, and the prefabricated wallboards, the prefabricated floor slabs and the prefabricated corner columns are connected by the novel energy dissipation bolt joint for the low-rise fabricated wallboard structure. Grooves are formed at the edges of connection parts among the prefabricated wallboards, the prefabricated floor slabs and the prefabricated corner columns, and bolt holes are formed in the parts of the prefabricated wallboards, the prefabricated floor slabs and the prefabricated corner columns in thegrooves in a reserved mode. Arc-shaped connecting steel plates are arranged outside the grooves. Bolt holes are formed in the arc-shaped connecting steel plates. Adjacent elements are connected by means of bolt connection through the arc-shaped connecting steel plates and high-strength bolts. An energy dissipation joint with good ductility is provided, the arc-shaped connecting steel plates are selected as main energy dissipation parts, so that failure first occurs on the arc-shaped connecting steel plates, it is guaranteed that bolt connecting pieces and other parts are not damaged and surrounding concrete is not destroyed before the failure first occurs on the arc-shaped connecting steel plates, and the ductility, deformation performance and energy dissipation performance of the energydissipation bolt joints are guaranteed.

The invention is a highly-efficient solar cell, relates to a photocell. The highly-efficient solar cell according to the invention has a substrate made of insulation materials and a panel made of photoelectric conversion materials; outside surface of the panel is provided with transparent spectrum conversion thin layer containing rare-earth fluorescent materials which is activated by corresponded weak solar spectrum band of the photoelectric conversion materials, strong solar spectrum band of the photoelectric conversion materials is emitted. Sunlight is used to activate the rare-earth fluorescent materials to generate a fluorescence effect, spectrums with better response to the solar cell is obtained by converting more solar spectrums with simple structure and low cost, and then photoelectric transformation efficiency of the solar cell is increased. Problem in improvement of photoelectric transformation efficiency by using solar spectrums with complex structure and high cost of the solar cell is solved.

The invention discloses an automatic feeding and blanking production line and a control method thereof. The automatic feeding and blanking production line contains two structure modes, namely, a U-shaped line layout and a line type line layout. A production line body is formed by basic units and meets the requirement of a modular assembly technology; each basic unit is divided into an upper layerand a lower layer, so that modular splicing can be realized, and multiple layout forms are realized; and in addition, a tray backflow function can be realized. The production line is further providedwith a tray and tool conveying mechanism for supporting quick changeover, a tray conveying control system, a single-station manual / automatic real-time switching control system, a production line conveyor line body transfer real-time control mechanism, a production line work-in-process temporary storage station design, and flexible and changeable production line arrangement forms. On the basis of the idea of lean production, the problems of high stock level, circulation difficulty, high manufacturing cost, low product quality, waste in space, time, manpower and tool, and the like existing actually are solved.

The invention relates to a compatilizer for a cellulose material reinforced composite material and a preparation method for the compatilizer, and belongs to the technical field of high polymer material modification. A reaction interface compatilizer is prepared by cografting acrylate monomers, styrene, an initiator, polyolefin, a bonding agent and the like on the polyolefin through a solid-phase grafting method. The compatilizer has the advantages that the grafting ratio of functional monomers on a polymer substrate main chain is high, the functional monomers can form covalent bonds with hydroxyl on the surface of a cellulose material efficiently, and the dispersibility of the cellulose material in a plastic substrate is promoted; meanwhile, the macromolecular main chain has proper molecular weight, can be subjected to chain entanglement with the plastic substrate in the composite material to improve the compatibility, has high melting fluidity, can effectively infiltrate the composite material during processing, is closely meshed at the interface to form an interface layer for effectively transmitting stress and effectively relieves fine cracks generated due to deformation of the material, the mechanical properties and water resistance of the composite material are improved, and the application range of the composite material in various fields is widened.

The invention relates to a catalyst for preparing methylallyl alcohol through selective hydrogenation of methylacrolein and a preparation method thereof, and mainly solves the problems of lower raw material conversion rate and lower product selectivity in the prior art. The catalyst for preparing the methylallyl alcohol through the selective hydrogenation of the methylacrolein comprises a first component, a second component, a third component and a carrier, wherein the first component is metal or oxide of Cu, Ag or a mixture of Cu and Ag; the second component is metal or oxide of at least one of Au, Ir, Ru and Pt; the third component is metal or oxide of at least one of La, In, Co, Sn, Fe and Mn; the carrier is at least one of MgO, TiO2, Al2O3, SiO2, activated carbon, kieselguhr, ZrO2, ZnO, an HY molecular sieve and a ZSM-5 molecular sieve. The invention adopts a technical scheme of the catalyst for preparing the methylallyl alcohol through the selective hydrogenation of the methylacrolein and the preparation method thereof so as to well solve the problems, and the catalyst and the preparation method can be applied in preparing the methylallyl alcohol through the selective hydrogenation of the methylacrolein.

The invention discloses a method for continuous production of liquid calcium chloride by using a fluorine-containing by-product waste hydrochloric acid, and belongs to the technical field of environmental protection and resource utilization. The fluorine-containing by-product waste hydrochloric acid as a raw material is subjected to a continuous reaction with limestone in a reaction container with or without a stirring device, then a reaction completion liquid produced in the process of continuous reaction is introduced into a liquid storage tank in an overflow way, a pH value regulator is added into the liquid storage tank in a continuous way to regulate the pH value of the reaction liquid to pH=8-14, and the liquid calcium chloride is obtained by clarifying, filter pressing and filtration. Because the technology process is concise, the technology factors are not strict, and the method can be convenient to operate; because the adopted raw material is the fluorine-containing by-product waste hydrochloric acid, the method not only can convert waste into wealth, but also can protect the environment, so as to reflect maximization utilization of resources; and due to continuous production of liquid calcium chloride, the production efficiency is high, and mass processing requirements on the fluorine-containing by-product waste hydrochloric acid are met.

The invention relates to a preparation method for noble metal modified titanium anode materials, belonging to the technical field of high-performance electrode materials. The preparation method for noble metal modified titanium anode materials comprises the following steps of: taking noble metal organic complex as a precursor; atomizing the precursor into atomizing flow after being dissolved in organic solvent; depositing the precursor on the surface of a titanium sheet; thermally decomposing and cooling under the existence of inertia gas; repeating three continuous steps of depositing, thermally decomposing and cooling for at least once; and carrying out aftertreatment, so as to obtain the noble metal modified titanium anode materials. The titanium anode prepared by the method has high yield and less surface exposed point; the noble metal and pure titanium base material have high binding force; and the whole coating has better homogeneity and uniformity. Experiments show that the titanium anode prepared by the method has better electrochemical performance and long service life.

A synthetic method of gamma-aminobutyric acid belongs to the technical field of organic chemistry catalytic synthesis. A solid base is used as a catalyst; a ring-opening reaction of a pyrrolidone aqueous solution is performed to obtain a reaction solution; the reaction solution is fitered to obtain a gamma-aminobutyric acid solution; the gamma-aminobutyric acid solution is concentrated, cooled, crystallized and dried to obtain gamma-aminobutyric acid. The advantages are that: the yield is up to above 94%; the reaction time is significantly shortened, and the process is simple because of one-step synthesis; during the synthesis, no pollutant destroying the environment is generated, and thus cleaner production is realized; the purity of the gamma-aminobutyric acid is up to above 99%.

The invention discloses a skin wound repairing preparation which is prepared by dissolving hyaluronic acid, 4-dimethylamino pyridine, 1-(3-dimethylamino propyl)-3-ethyl carbodiimide hydrochloride in dimethyl sulfoxide, and performing magnetic stirring at the room temperature so as to obtain a hyaluronic acid solution; mixing pulullan with dimethyl sulfoxide, and uniformly stirring so as to obtain a pulullan solution; slowly dripping the pulullan solution into the hyaluronic acid solution to react for 4-48 hours at 40-80 DEG C, dialyzing the reaction liquid, and performing freeze-drying on the obtained dialysis liquid, thereby obtaining the skin wound repairing preparation. The skin wound repairing preparation disclosed by the invention has multiple effects of isolating bacteria, absorbing effusion of a wound surface, keeping the wound surface wet, promoting the wound surface to heal and the like, moreover is wide in preparation raw material resource, low in cost, gentle in synthesis condition, concise in production route, good in operability, and easy in production quality control, and most importantly has relatively higher security and clinical use values when being compared with a conventional similar product.

The invention provides a method for treating high boron content terrestrial heat tail water. The terrestrial heat tail water first passes through a boron removal prefilter and a boron removal filter and then undergoes ceramic membrane ultra-filtration treatment and multistage reverse osmosis treatment. The prefilter is filled with a filtering medium formed by sintering activated carbon and diatomaceous earth, and the boron removal filter is filled with boron removal absorbent resin containing multivalent alcoholic groups and amino groups. The boron removal filter isolates a filter material by using a fiber filter screen, and the terrestrial heat tail water enters the prefilter and the filter low and comes out high. When the boron content of the terrestrial heat tail water is 100 mg / L, the boron removal rate is not lower than 99.6%, and the water quality of discharged water can respectively reach the waste water discharge standard and drinking water or farm irrigation water quality standard. The method for treating the high boron content terrestrial heat tail water is good in boron removal effect, reduces device investment cost and running cost and improves utilization level of terrestrial heat tail water resources.